Silly Putty is pretty much the best non-Newtonian viscoelastic liquid
we can think of--it stretches, it bounces, it transfers ink, it's
reminiscent of mussel fibers,
and it can be broken with a sharp blow. But what if it's blended with
magnetic powder? Turns out magnetic Silly Putty has an unquenchable
hunger for magnets.

Instructables posted a guide to creating your own magnetic Silly Putty. It's pretty simple,
basically requiring you to slowly fold ferric iron oxide powder (which
can be found in art supply shops) into a clump of Silly Putty. After
it's been thoroughly magnetized (and dyed black, thanks to the powder),
it will stretch and move like a thick liquid magnet, reaching to get to
the small magnets used in this video.

It gets a bit unnerving when a magnet is placed directly on the side
of the newly magnetic Silly Putty--the Putty seems to eat and then
digest the magnet, pulling it inside itself in slow motion like some
kind of unfathomable science-fiction horror creature. Make sure to watch
until the end to see its creepiness on display.